DOI QR코드

DOI QR Code

Determination of Tocopherol Contents in Refined Edible Oils Using an HPLC Method

  • Hu, Jiang-Ning (Department of Food Science and Technology, Chungnam National University) ;
  • Zhu, Xue-Mei (Department of Food Science and Technology, Chungnam National University) ;
  • Adhikari, Prakash (Department of Food Science and Technology, Chungnam National University) ;
  • Li, Dan (Department of Food Science and Technology, Chungnam National University) ;
  • Kim, In-Hwan (Department of Food and Nutrition, Korea University) ;
  • Lee, Ki-Teak (Department of Food Science and Technology, Chungnam National University)
  • 발행 : 2009.09.30

초록

A high-performance liquid chromatography method was applied to determine the contents of tocopherols in edible oils using a LiChrosorb DIOL HPLC column and hexane fortified with 0.1% acetic acid in an isocratic mode. The validation of the method included tests for linearity, sensitivity, accuracy, precision, and recovery. All calibration curves showed good linear regression ($r^2$>0.9995) within the tested ranges. The established method offered good precision and accuracy with overall intra-day and inter-day variations of 0.94$\sim$4.27 and 1.77$\sim$ 4.88%, respectively. The tocopherol recoveries ranged from 91.44$\sim$108.90%. Subsequently, the method was successfully applied to qualitatively and quantitatively determine the total contents of $\alpha$, $\gamma$, and $\delta$-tocopherols in 12 selected refined edible oils, showing a range of 0.92 to 188.71 mg/100 g.

키워드

참고문헌

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